A unique project that combines architecture and science, full of challenges and surprises. At the top of this impressive building, an extraordinary telescope projects our universe onto a geodesic dome, creating an immersive experience for seventeen lucky spectators. The structure, accessible via two bridges that cross a hidden moat, has a ground floor dedicated exclusively to services. The innovative aspect of the design lies in the fact that the telescope is supported by three thin columns with independent foundations, guaranteeing perfect stabilization. From the beginning, astronomers and structural engineers worked together to ensure that the telescope's operation and calibration were flawless.